The May blues usually refers to a temporary slump in mood, energy, or motivation that some people feel in May , especially in Japan, where it is often called gogatsu-byo or “May sickness.” It’s commonly linked to stress after big life changes, like starting a new school, job, or routine in April.

Quick Scoop

In plain English, it’s a post-change burnout / malaise rather than a formal diagnosis. People may feel tired, unmotivated, irritable, or a bit down, and it often shows up around the start of Japan’s new school and work year.

Why it happens

  • New routines can be emotionally draining.
  • Spring schedule changes can pile on pressure.
  • The contrast after holidays like Golden Week can make the return to normal life feel rough.

What it can feel like

  • Low energy.
  • Reduced motivation.
  • Mild sadness or stress.
  • Trouble adjusting to work or school.

Important note

If low mood or fatigue lasts more than a short time, gets worse, or interferes with daily life, it may be more than “May blues,” and it’s worth talking to a health professional.

If you want, I can also explain the difference between May blues, seasonal affective disorder, and regular burnout.